Safety device for sad-irons.



n. 1; ,uAnsnALL. SAFETY DEUCE you .SAD IRO I IS. APPLICATION FIILI'UMIG-24. INI- 45 Patented Mum INVENTORSZ cumin STATES 1 PATENT OFFICE.

RICHARD J. MAItSI-IALL, OF BROOKLYN, NEW YORK.

SAFETY DEVICE muslin-moms.

Specification of Letters Patent.

Patented Qct. 8, 1918.

Application filed August 24, um. 7 Serial no. 187,970.

To all whom it may concern? Be it known that I, RICHARD J. MAnsuALL,

a citizen of the United States, residing in. the borough of Baookl n,county of K ngs,

and State of New Yor c, have invented certain new and usefulImprovements in Safct Devices for Sad-Irons, of which the to lowing is aspecification.

This invention. relates to sad-irons and,

particularly, has'reference to a safety de vice or means adapted toavoid tires result ing from overheatmg. the iron.

Among the objects of my invention may be noted the following: to providemeans 1n 16' connection with anclcctrically heated'sadlI'OIlandits'holder' whereby, when the iron .is placed in the holder andpropcrattach- "ment has been made with the service wire, the heating ofthe iron will at oncebegin;

to provide means by whichjshould the iron become excessively heated,themeans holdin the contacts will he automatlcally release thus breakingthe electric circuit and permit ting the iron to cool; to 'providenieansby .26 which, while theiron isin service, contacts 80 ingto maybeengaged and disengaged, or the elec tric circuit made and broken, bymerely manipulating the handle of the iron, thus enablingt 10 iron to beheated or cooled accord- 'e will of the, operator; to provide means bywhich, while the iron is inservice, the current may be continued theretoor broken as desired, and when for any reason the iron is momentarilyreleased, or left upon .II the holder, or some nearby .object, thecurrent which will be detailed during thereto will be automaticallybroken, thus allowin the iron to cool and avoiding accidental res; toprovide an attachment for sad-i'rons' operating as a safety device forpreventing fixes; to provide a means by which the service-piug ma "bedetachablycarried by the handle of t csad-iron, and

' the circuit: between the plug and the heat ing coil of the iron may bebrokenby liftiii}; the handle to the. degree desired; and to providesimplc, inexpensive and effective means for,;carrying-out theforcg'oing'objects and bringing about the functional results noted.

With the aboveobjects in view and others 't is description, my inventionconsists in t e parts, features, elements and-combina-l tions thereofhereinafter described and, claimed. 1

' In order that any invention may be clearly the course of understood,drawings are provided wherem" in its holder and embodying my invention;

Figure 1 is a side elevation of a sad-iron Fig. 2 is a, right-endelevation of the structure shown in Fig. 1;

Fig. 3 is a horizontalsection on the line 33 of Fig. 1. v

Fi ii is a vertical section substantially on the line 4-4 of Fi 1; and

Fig. 5 is an e evation of the sad-iron shown in Fig. '1 with the handlethereof thrown back to the full extent.

Referring to the drawings, the numeral 1 indicates the base of the ironwhich may be ofany usual form, the same containing the usual heatng-coil and other structural elements, and also the usual ;upstandingplugsocket 2 and rest 3. The iron is shownas set upon the usual holder4','at one end of which is secured a strip of metal 5 in; any suitablemanner,-and to WlllCll is secured-the adjustable curved strip o'f-metal6, arched over thehandle'of tie iron and having journaled at its freeend the anti-frictional substantially roll]. The curved member 6 and thestraight or slightl outwardly bent member .1; are compose of differentmetals having. different coeflicients of expansion in'the presence ofheat; and the two membersfi and 6 are secured together by screwsSpassing through slots in the member 6, whereby the latter may beadjusted vertically'on the member 5 so as to hold the roll 7 in theproper. predetermined relation to the handle of the iron. To the top ofthe base of the iron is secured, in any suitable manner, the strip ofmetal 9, or said strip may'be made of any suitable heat insulatingmaterial, said strip, at one end, having the vertical exten sionlfi'which is riveted or otherwise fixed to the'plug-socket 2,said-extension 1O having a pin 11 set therein at a right-angle thereto.At its opposite end th'e strip 9 is obliquel set and has thel'iingc-meniber 12 her 13 being figted to t-l-le'adjaceiit end of thehandle 14, in any suitable way, as by, a depending member 15 whichcarries the thumb-rest 16. In this manner, the handle is hinged to .thebase of the iron and may be thrown way back, as shown iii Fig. 5, ormove vertically to a limited extent soas toLmake and break contact ofthe service circuit at theplug-socket 2. Secured to the ioo fixedthereto, the eomplemental l in-ge-mcmv strip 9 is the attaching member17 of a re- 1 a semi-loop as at 18 in position under the handle 14 nearits hinged end. Thus disj posed, the spring operates to normally elevatethe handle a predetermined amount suflicient to break the electriccircuit. at the plug-socket 2. The base of the spring is secured to thespring 9 by slot and screw 19, enabling the sprin to be adjustedlongitudinally and thus siift its BXBClltp/fi end 18 relatively to thehandle, so as to increase tension upon the handle and normally tend tohold the same elevated the extent desired. At its free end, the handle14 has a U-shaped supporting member 20 fixed thereto in any suitableway, and having its arms 21 at up osite ends bifurcated to reccive'thejourna s or lugs 22 of the plug 23'ot usualconstruction, which isadapted to enter the socket 2 and complete the electric circuit,

through the heating-coil of the sad-iron,

from the service line 24. To limit the movementof the handle under thestress of the spring member 18', the supporting member 20 has journaledupon the headed pin 25,

a hook or gravital-latch 26, which normally swings under and against thep n 11 projeeting from the socket 2. T 1e form of the latch is such asto enable the handle to be raised and lowered in operation withoutinterference; but, the pin 11 is so located as to limit the movement ofthe handle under the stress of the spring, so as to prevent the plug 23from being litted in the socket 2 to an extent sufii'cient to disturbthe cooperation or slidin relation of the plug and its points 27 withthe points or contacts 28 of the socket. In other words, the plug 23 mayrise in the socket-2 under stress of the spring member 18'su-fiicieut-ly to break the electric circuit, but not sufficiently tocause the contacts 28 of the socket to leave the recesses or aperturesin the plug 23 containing the contact 27. Thus the plug and socket arealways held relatively in cooperative relation so as to readily andquickly make and break contact under opposite pressures imposed upon thehandle 14 by the hand of the operator and the. spring member 18. The.pli'lg member 23 is held by its journals 22 in the bifurcations of thesupporting ember 20, by means of the late-1129 iwoted at 30.x;to one ofthe lower arms of said supportiiig une nher, tlie opposite lower armhaving the headed pin 31 over which the hook 32 of the latch 29 engages.Thus the plug may be readily detached from the halldie of the'lron andattached thereto when desired. I

From the foregoing descri tion, it will be seen that -'I have provide ameans by which the service line canbe readily attached to and detachedfrom the iron, and

matically lift the handle, thus lifting the plug 23 within the socket 2and breaking the -circuit through the iron. This is the safety means bywhich fires are prevented, since, when the iron is released and laidaside for a moment, instead of continuing to be heated, the electriccircuit is broken and the iron instantly begins to cool. When it isdesired to heat the iron, the plug 23 is latched to the supportingmember of the handle and theiron is then placed upon the holder 4. In sodoing, the handle is shoved under the anti-frictional roll of the strongspring member -6 which forces the handle downwardly carrying the plug 23deeply into. the socket 2, thus making the electric circuit, the currentof which will rapidly heat the iron. If the user thoughtlessly leavesthe iron in the holder with the current turned on for an indefiniteperiod, resulting in excessively heating theiron, the heat from thelatter'will communicate to the holder 4 and thence to the members 5 and6, resulting in excessively heating the said members, the unequalexpansion of which will cause'the curved member 6 to be pushedbackwardly andto flex backwardly and upwardly, thus materiallydecreasing pressure of the antifrictional roll upon the handle 14 and inturn permitting the spring member 18 to lift the handle 14 and the plug23 within the socket 2, thus breaking the'electric circuit and enablingthe iron to instantly cool. Thus, two safety devices are embodied in myinvention, the presence of which renders 1t unposslble for conflagrationto occur, Ang

other 'reat adyantage of my. invention is that w lle' the iron is heatedtojthe desired extent for certain pieces of work, it can permitting thecircuit to be broken within the plug-socket. 2. The latch 26*maintainsthe plug and socketin proper cooperative relation for 'instantcircumtmaking, as heretofore explained.

Having thus described my invention, whatmanipulated 5 have freedom o1 Iclaim and desireto sccurcby Letters Patent isA:

safetyjdeviee for electrically heated sad-irons comp si a handle mountedto the handle for conveyio the iron; and means handle for automaticallymeans carried by ing the currentl operating upon the lifting t c sameand breaking 2. An electrically heated sad-iron comprising a handle andmeans for hinging the same'to the at one end; means at'the,v

other end of the handle ,for' carrying an. a. socket carried at the ofhe iron for receiving the u, i)-

8. 11 sad-iron having a handle hinged I t to for freeTverticaLmovemgnt;means 20 r automatically lifting the hai'idlewhen or limiting thelifting movement of the smile. 4; An elcctri ly heated sad-iron caug-"gmg iplug a handle hinged to t e 1' iron atom and a carryin' a plugadapted to cooperate with the soc et; and means connecting the handlewith the iron whereby the ph'ig-and socketumay be held in tivef relationwithout establishing the c ectric circuit.

5. In combinatiomwith an electrically h t d sad-iron having a .movahlymounted movement vertically;

the circuit 10 when pressure on the-handle 1s removed.

{reassure thereonv is rcmo'ved; and means 'holder, n 10. In combination,an electricall heated handle; means forconveying the current to thehandle; .means for en not in use; and'inter-g acting automatically 0eratin means be-v tween the handle and t e ho] er for establiehing thecircuit and heatin the iron when the latterjs set in theho der.

",the iron carried by holding the iron. "w

6 1p combination with an "electrically heated sad-iron; means forestablishing the circuit thereto ;"a' holder for the iron; means wherebthe circuit to the iron is closed when t'ie latterisplacedin the-holder;and means {for automatically breaking the electric circuit whem'thein'on becomes excessively heated in the=h0lder.-' 7. Anelectricallyhated sad-iron havin a handle" pivotallymounted for vertica0 movement; and means whereb when the iron is in use, the circuit to ,te iron may,

be established and interrupted at. will by. l

applying to or removing pressure from the ban le. i

sad-iron having circuit maki and breaking members thereon; a. non eectric holder.

therefor; and means between the: iron and holder whereby the circuit;tothe former may be made and automatically broken.

9. In combinatiom 'a'n electnic'ally'heated r .u 8. In combination, anelectrically heated sad-iron having amoyable handle carr a detachableclrcuit' makingbreaiiing device; a holder ior the iron' and meanssad-iron, aholder'thercfor, means or auto-v on o crating upon the handlefor establishing? matically 'establishinithe circuit-when the iron 1splaced in' the older, and means for automatically breaking the circuitwhen the ii'on becomes overheated.-

= 11. -A non-electric holder for electrically ing upon theiron wherebywhen the iron isthereon, the circuit to the. iron ma established andsubsequently broken i iron becomes overheated.

RICHARD J. MARSHALL.

7" heated sad-irons having means for operat-

